WO2015011422A1 - Montant latéral pour caisse de véhicule automobile perfectionné - Google Patents
Montant latéral pour caisse de véhicule automobile perfectionné Download PDFInfo
- Publication number
- WO2015011422A1 WO2015011422A1 PCT/FR2014/051925 FR2014051925W WO2015011422A1 WO 2015011422 A1 WO2015011422 A1 WO 2015011422A1 FR 2014051925 W FR2014051925 W FR 2014051925W WO 2015011422 A1 WO2015011422 A1 WO 2015011422A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- composite material
- wings
- lateral
- core
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/004—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material the metal being over-moulded by the synthetic material, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/005—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material preformed metal and synthetic material elements being joined together, e.g. by adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
Definitions
- the present invention relates to an amount for a body of an improved motor vehicle.
- a bay of a motor vehicle body is called an opening of the body generally forming a passage for a person or a visual access between the inside and the outside of the vehicle.
- bays for opening vehicle, windshield and rear window are, for example, bays for opening vehicle, windshield and rear window.
- a motor vehicle body usually comprises at least two lateral uprights, respectively left and right, each intended to separate two front and rear side bays of the body.
- Each lateral amount also called in this case “middle foot” participates in the protection of the passenger compartment by forming a lateral shock absorption member.
- a first central element is manufactured, in general, steel having characteristics of high mechanical strength.
- a second element is assembled on the first central element so as to form a lining of the latter internal to the passenger compartment.
- a third element is assembled on the first central element so as to form a visibly visible part essentially from outside the passenger compartment when the doors of the vehicle are open.
- the three elements in stamped sheet form a generally box-shaped structure relatively well adapted to the absorption of lateral shocks.
- a lateral amount comprising three metal elements is relatively heavy.
- EP 1 142 739 proposes a metal member capable of forming a side upright for a motor vehicle body. More particularly, EP 1 142 739 proposes a lateral amount for a motor vehicle body intended to separate two front and rear lateral bays of the body, of the type comprising at least one stiffening section comprising two wings substantially parallel to each other and interconnected by a soul.
- the stiffening section has a cross section in the general form of i formed by the two wings interconnected by the core.
- the core is formed by a substantially flat central wall connecting the two wings substantially parallel extending substantially perpendicular to these two wings.
- the thickness of each wing of the stiffening section varies significantly between the connecting edge of the wing with the core and the free edge of this wing, so that the thickness of the free edge of the wing is significantly reduced in relation to the thickness of the junction edge of the wing with the core.
- EP 1 142 739 proposes to make, if necessary, the stiffening section section i of composite material. But it turns out that, while maintaining the same shape, the replacement of the metal by a composite material leads to an unsatisfactory behavior of the lateral amount during a shock. Indeed, the junction edges of the flat web with the wings are relatively straight and extend substantially vertically over the entire height of the stiffening section which creates instability of the amount during a side impact sustained by the vehicle under the effect of off-axis efforts relative to the edge of the junction of the soul. This leads, in the case of a stiffening section of composite material to torsional deformations of it undesirable during a side impact.
- the small thickness of the free edge of the wings leads, when these wings are made of composite material, to the risk of cracking of this free edge likely to propagate towards the core of the stiffening section.
- the invention particularly aims to provide a lateral amount for a motor vehicle body relatively light and simple to manufacture.
- the invention relates to a lateral amount for a motor vehicle body for separating two bays of the body, for example two front and rear side bays, at least one of the bays being lateral, of the type comprising at least one stiffening section comprising two wings substantially parallel to each other and interconnected by a core, characterized in that the stiffening section is made of composite material, the wings being intended to extend substantially parallel to the lateral bay of the body, core of the section of composite material forming, with the wings, a honeycomb structure.
- the web of the composite material section forms a honeycomb structure with the wings, the junction edges of the web with the wings extend in more than one direction and not only substantially vertically over the entire height. of the stiffening section. Furthermore, the honeycomb structure of the lateral upright according to the invention forms light means for stiffening this lateral upright which is thus capable of effectively absorbing side impacts experienced by the vehicle.
- stiffening section of composite material can be manufactured by relatively simple conventional methods of molding, injection, stamping, etc.
- each wing of the stiffening section to a thickness substantially constant.
- the composite material forming at least one wing comprises fibers of continuous reinforcements extending substantially parallel to the longitudinal direction of the upright, the length of the fibers possibly reaching the length of the stiffening section;
- the composite material forming the core comprises randomly cut staple fibers
- the section of composite material extends a metal portion of the amount, preferably a lower metal portion of this amount;
- the part of the metal upright is made of a material chosen from steel or aluminum including, where appropriate, magnesium;
- the section made of composite material is housed, at least partially, in a U-shaped metal cross-section box comprising a metal core bearing on a first wing of the section made of composite material, the second wing of this section made of composite material closing the box; U-section metal;
- the section made of composite material has a cross-section in the general shape of i formed by the two wings substantially parallel to each other and the core, the core of the composite material section comprising:
- the ribs delimiting the cells extend substantially perpendicular to the central wall and to the two wings,
- the section made of composite material is formed by joining two U-shaped cross section elements each comprising an elementary core extended by two elementary wings, the central wall of the core of the composite material section being formed by the face-to-face junction of elementary souls U-shaped section members and each wing of the composite material section being formed by two elementary wings of the U-section members extending opposite one another;
- the core of the section made of composite material comprises a corrugated central wall connecting the two wings, forming arches alternately reversing and curving around imaginary axes substantially perpendicular to the wings, these arches delimiting cavities of the honeycomb structure of soul ;
- the core of the section of composite material further comprises ribs interconnecting the central wall and the two wings;
- the ribs are inclined with respect to the axes around which the arches are curved and, where appropriate, intersect with each other;
- the composite material comprises a polymer chosen in particular from a thermoplastic polymer or a thermosetting polymer, for example a polyamide (PA, in particular PA 6 or PA 6.6), a polybutylene terephthalate (PBT), a mixture of polycarbonate and poly (butylene terephthalate) (PC-PBT), poly (methyl methacrylate) (PMMA), or vinylester (VE), SMC (in accordance with the acronym "Sheet Molding Compound”), epoxy (EP) , or a polyester;
- PA polyamide
- PA polybutylene terephthalate
- PC-PBT polybutylene terephthalate
- PC-PBT poly (methyl methacrylate)
- VE vinylester
- SMC in accordance with the acronym "Sheet Molding Compound”
- EP epoxy
- the composite material comprises reinforcing fibers made of a material chosen from glass, carbon or steel, and arranged in a structure chosen from a woven structure, a unidirectional nonwoven sewn sheet of the NCF type (corresponding to the English sign for No Crimp Fabrics ”) where applicable biaxial or braided structure.
- FIG. 1 is a perspective view in elevation of a lateral amount for a motor vehicle, according to a first embodiment of the invention
- FIG. 2 is a schematic sectional view along the line ll-ll of Figure 1, further showing a metal box;
- FIG. 3 is a view similar to Figure 1 of a lateral amount for a motor vehicle according to a second embodiment of the invention
- FIG. 4 is a view similar to Figure 2 of a lateral amount for a motor vehicle according to a third embodiment of the invention.
- FIG. 5 is a view similar to Figure 1 of a lateral amount for a motor vehicle according to a fourth embodiment of the invention; - Figure 6 is a sectional view along the plane VI-VI of Figure 5.
- FIGS. 1 and 2 show a lateral upright 10 for a motor vehicle body, also called a "center pillar", according to a first embodiment of the invention.
- This amount 10 is intended to separate two side bays front and rear of the body of the motor vehicle.
- the lateral upright 10 comprises at least one stiffening section 12 made of composite material.
- the stiffening section 12 extends over the entire height of the lateral upright 10.
- the stiffening section 12 comprises two flanges 14A, 14B substantially parallel to each other and interconnected by a core 16.
- the wings 14A, 14B are intended to extend substantially parallel to the bays of the body, that is to say substantially parallel to a median longitudinal vertical plane of the body.
- the core 16 of the section of composite material 12 forms, with the wings 14A, 14B, a cellular structure providing effective stiffening of this section 12.
- the composite material comprises a polymer chosen in particular from a thermoplastic polymer or a thermosetting polymer, for example a polyamide (PA, in particular PA 6 or PA 6.6), a polybutylene terephthalate (PBT), a polycarbonate and poly blend.
- PA polyamide
- PBT polybutylene terephthalate
- PC-PBT butylene terephthalate
- PMMA poly (methyl methacrylate)
- VE vinylester
- the composite material comprises reinforcing fibers of a material chosen, preferably from among glass, carbon or steel, and preferably arranged in a structure chosen from a woven structure, a sewn unidirectional nonwoven web.
- a material chosen preferably from among glass, carbon or steel, and preferably arranged in a structure chosen from a woven structure, a sewn unidirectional nonwoven web.
- NCF type corresponding to the English sign for "Non Crimp
- each wing 14A, 14B has a substantially constant thickness, for example selected between 3.5 and 6 mm.
- the composite material forming the core 16, more particularly the central wall 18 and the ribs 20, comprises randomly cut staple fibers.
- the composite material section 12 has a cross-section in the general shape of i formed by the two wings 14A, 14B substantially parallel to each other and the core 16.
- the core of the section 12 comprises a central wall 18, substantially flat, of substantially constant thickness, for example chosen between 3.5 and 6 mm.
- the central wall 18 connects the two wings 14A, 14B extending substantially perpendicular to these two wings 14A, 14B.
- the central wall 18 comprises a plate 19 forming a support for a keeper (not shown) of a vehicle door locking device.
- the core of the section 12 comprises ribs 20 of composite material extending on either side of the central wall 18 and between the two wings 14A, 14B so as to connect the central wall 18 and the two wings 14A, 14B.
- the ribs 20 delimit cells 22 of the honeycomb structure of the core 16. Note that, in the example shown, these ribs 20 extend substantially perpendicular to the central wall 18 and the two wings 14A, 14B.
- the thickness of the ribs 20 is for example between 2 and 6 mm, being scalable if necessary to have a draft profile.
- the ribs 20 are for example spaced from each other by about 40 to 60 mm, the upright 10 having a height of about 1200 mm.
- stiffening section 12 is housed, at least partially, in a metal box 24 of U cross-section.
- This box 24 comprises a metal core 26 extended by two metal wings 28A, 28B .
- the metal core 26 is supported, at least locally, on a first flange 14A of the stiffening section 12.
- the second flange 14B of this stiffening section 12 closes the U-section metal casing. It can be seen in FIG. 2 that the free edges of the two metal flanges 28A, 28B are connected to the edges of the flange 14B in a manner known per se, by conventional means 30, for example rivets, screws, glue beads or welds.
- the lateral upright 10 comprises a stiffening section of composite material 12 extending a portion 32 of the upright 10 distinct from this section 12.
- the part 32 is made of metal and forms a lower part of metal of this amount 10.
- connection between the metal part 32 and the material stiffening section Composite 12 can create, in the event of a side impact sustained by the vehicle, a ball joint effect limiting the penetration of the upper part of the upright 10 into the passenger compartment and thus further protecting the head of an occupant of this passenger compartment.
- the stiffening section of composite material 12 is connected in known manner to either the metal part 32 for example by riveting, screwing, gluing or overmolding.
- the metal portion 32 is in a material selected from steel or aluminum including, where appropriate, magnesium.
- the portion 32 of the separate post 10 of the stiffening section 12 could be of composite material having a structure intended, in case of shock, to dissipate more energy by delamination than by rupture.
- This structure could be formed by a polymer overmolded on a woven reinforcement of glass fibers or carbon.
- the lateral upright 10 comprises a stiffening section made of composite material 12 formed by joining two elements 34 of U cross section.
- Each element 34 comprises an elementary core 36, substantially flat, extended by two elementary wings 38A, 38B.
- the central wall 18of the core 16 of the stiffening section 12 is formed by the junction face to face of the elementary cores 36 of the elements 34 of U-section.
- Each flange 14A, 14B of the stiffening section 12 is formed by two elementary flanges 38A, 38B of the U-section elements 34 extending opposite one another.
- the face-to-face junction of the elementary cores 36 of the elements 34 of U-section can be achieved for example by partial melting of the junction faces in a mold.
- the ribs of composite material 20 extend on either side of the central wall 18 (formed by the two elementary souls 36 joined) between the two wings 14A, 14B (formed by the elementary wings 38A, 38B) so as to interconnect the central wall 18 and the two wings 14A, 14B.
- the composite material forming each wing 14A, 14B (formed by the elementary wings 38A, 38B) as well as the central wall 18 (formed by the two elementary cores 36 joined together), comprises fibers of continuous reinforcements extending substantially parallel to the longitudinal direction of the upright 10.
- the core 16 of the stiffening section of composite material 12 comprises a corrugated central wall of composite material 40.
- This wall 40 connects the two wings. 14A, 14B.
- the corrugations of the wall 40 form arches 42 reversing alternately and curving around imaginary axes L substantially perpendicular to the wings 14A, 14B, these arches delimiting the cells 22 of the honeycomb structure of the core 16.
- the stiffening section 12 further comprises ribs 44 interconnecting the central wall 40 and the two wings 14A, 14B.
- the ribs 44 are inclined relative to the axes L and, where appropriate, as in the example shown in Figure 5, intersect with each other.
- the core 16, more particularly the central wall 40 and the ribs 44 is formed of a composite material identical to one of those proposed for the central wall 18 and the ribs 20 of the embodiments. precedents.
- the stiffening section 12 can be manufactured by any suitable known method, for example by a compression process, an injection method, a stamping process, where appropriate carried out by means of an injection mold and over-injection, or by a stamping process semi-finished intermediate products (also called "prepreg").
- the cut reinforcing fibers that can be used are generally between 25 and 50 mm in length.
- the cut reinforcing fibers that can be used are a length generally of between 0.2 and 2 mm.
- the invention is not limited to a lateral amount for a motor vehicle body called "middle stand", but concerns any lateral amount intended to separate two bays of the box such that at least one of the bays is lateral.
- the invention may relate to a lateral upright intended to separate an opening side bay and a windshield or an opening side bay and a rear window.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14750581.2A EP3024714B1 (fr) | 2013-07-25 | 2014-07-24 | Montant latéral pour caisse de véhicule automobile perfectionné |
KR1020167004135A KR20160041938A (ko) | 2013-07-25 | 2014-07-24 | 개선된 자동차 차체용 측면 직립부 |
US14/906,930 US9783240B2 (en) | 2013-07-25 | 2014-07-24 | Lateral upright for motor vehicle body shell |
JP2016528593A JP2016525480A (ja) | 2013-07-25 | 2014-07-24 | 改良された自動車の車体用の側面ピラー |
CN201480052848.7A CN105579329B (zh) | 2013-07-25 | 2014-07-24 | 改进的用于机动车车身的侧立柱 |
ES14750581T ES2717687T3 (es) | 2013-07-25 | 2014-07-24 | Montante lateral para carrocería de vehículo automóvil perfeccionado |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1357331 | 2013-07-25 | ||
FR1357331A FR3008945B1 (fr) | 2013-07-25 | 2013-07-25 | Montant lateral pour caisse de vehicule automobile perfectionne |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015011422A1 true WO2015011422A1 (fr) | 2015-01-29 |
Family
ID=50288171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2014/051925 WO2015011422A1 (fr) | 2013-07-25 | 2014-07-24 | Montant latéral pour caisse de véhicule automobile perfectionné |
Country Status (8)
Country | Link |
---|---|
US (1) | US9783240B2 (fr) |
EP (1) | EP3024714B1 (fr) |
JP (1) | JP2016525480A (fr) |
KR (1) | KR20160041938A (fr) |
CN (1) | CN105579329B (fr) |
ES (1) | ES2717687T3 (fr) |
FR (1) | FR3008945B1 (fr) |
WO (1) | WO2015011422A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230174165A1 (en) * | 2021-12-07 | 2023-06-08 | Ford Global Technologies, Llc | Structural assembly for vehicle components having continuously formed composite reinforcement |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6162677B2 (ja) | 2014-11-28 | 2017-07-12 | 豊田鉄工株式会社 | ホットスタンプトリム部品 |
US9580111B1 (en) * | 2015-09-28 | 2017-02-28 | Ford Global Technologies, Llc | Vehicle body component |
KR20210036997A (ko) * | 2016-05-11 | 2021-04-05 | 아이디에이씨 홀딩스, 인크. | 무선 시스템에서의 매체 액세스 프로토콜 데이터 유닛 어셈블리무선 시스템에서의 매체 액세스 프로토콜 데이터 유닛 어셈블리 |
DE102017200368A1 (de) * | 2017-01-11 | 2018-07-12 | Bayerische Motoren Werke Aktiengesellschaft | Spriegel eines Kraftfahrzeugs |
JP6575015B2 (ja) * | 2017-07-07 | 2019-09-18 | 本田技研工業株式会社 | 車体構造 |
DE102018113141A1 (de) * | 2018-06-01 | 2019-12-05 | Muhr Und Bender Kg | B-Säule für eine Kraftfahrzeugkarosserie sowie Kraftfahrzeugkarosserie mit einer solchen B-Säule |
CN110254525B (zh) * | 2019-05-05 | 2021-12-03 | 宜兴市新立织造有限公司 | 一种三维织物复合材料汽车b柱及其制备方法 |
CN113619689B (zh) * | 2021-07-20 | 2022-09-23 | 岚图汽车科技有限公司 | 一种保证c柱侧围外板强度的加工方法 |
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EP1142739A1 (fr) * | 1997-06-06 | 2001-10-10 | KYOHO MACHINE WORKS Ltd. | Renforcement pour un élément de structure creux d'un véhicule, avec diminution de l'épaisseur vers les extrémités |
DE102004008006A1 (de) * | 2004-02-19 | 2005-09-08 | Daimlerchrysler Ag | Karosserieelement aus einem transparenten Kunststoff |
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DE102008032344A1 (de) * | 2008-07-09 | 2010-01-14 | Bayerische Motoren Werke Aktiengesellschaft | Baugruppe, insbes. für eine Fahrzeugkarosserie |
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EP2383170A1 (fr) * | 2009-07-02 | 2011-11-02 | Basf Se | Dispositif de renforcement de profilés creux ou de profilés en U et profilé ainsi renforcé |
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2013
- 2013-07-25 FR FR1357331A patent/FR3008945B1/fr not_active Expired - Fee Related
-
2014
- 2014-07-24 KR KR1020167004135A patent/KR20160041938A/ko not_active Application Discontinuation
- 2014-07-24 EP EP14750581.2A patent/EP3024714B1/fr not_active Not-in-force
- 2014-07-24 ES ES14750581T patent/ES2717687T3/es active Active
- 2014-07-24 US US14/906,930 patent/US9783240B2/en not_active Expired - Fee Related
- 2014-07-24 JP JP2016528593A patent/JP2016525480A/ja active Pending
- 2014-07-24 CN CN201480052848.7A patent/CN105579329B/zh not_active Expired - Fee Related
- 2014-07-24 WO PCT/FR2014/051925 patent/WO2015011422A1/fr active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1142739A1 (fr) * | 1997-06-06 | 2001-10-10 | KYOHO MACHINE WORKS Ltd. | Renforcement pour un élément de structure creux d'un véhicule, avec diminution de l'épaisseur vers les extrémités |
DE102004008006A1 (de) * | 2004-02-19 | 2005-09-08 | Daimlerchrysler Ag | Karosserieelement aus einem transparenten Kunststoff |
DE102007053354A1 (de) * | 2007-10-30 | 2009-05-07 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Fahrzeugkarosserie |
DE102008032344A1 (de) * | 2008-07-09 | 2010-01-14 | Bayerische Motoren Werke Aktiengesellschaft | Baugruppe, insbes. für eine Fahrzeugkarosserie |
DE102008058225A1 (de) * | 2008-11-19 | 2010-07-08 | Lanxess Deutschland Gmbh | Leichtbauteil in Hybridbauweise |
EP2383170A1 (fr) * | 2009-07-02 | 2011-11-02 | Basf Se | Dispositif de renforcement de profilés creux ou de profilés en U et profilé ainsi renforcé |
US20120153669A1 (en) * | 2010-12-20 | 2012-06-21 | Sabic Innovative Plastics Ip B.V. | Reinforced body in white and method of making and using the same |
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DE102011111232A1 (de) * | 2011-08-20 | 2013-02-21 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Leichtbauteil, insbesondere Karosseriesäulenverstärkung und Verfahren zur Herstellung des Leichtbauteils |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230174165A1 (en) * | 2021-12-07 | 2023-06-08 | Ford Global Technologies, Llc | Structural assembly for vehicle components having continuously formed composite reinforcement |
US11787484B2 (en) * | 2021-12-07 | 2023-10-17 | Ford Global Technologies, Llc | Structural assembly for vehicle components having continuously formed composite reinforcement |
Also Published As
Publication number | Publication date |
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JP2016525480A (ja) | 2016-08-25 |
EP3024714A1 (fr) | 2016-06-01 |
KR20160041938A (ko) | 2016-04-18 |
FR3008945A1 (fr) | 2015-01-30 |
CN105579329A (zh) | 2016-05-11 |
ES2717687T3 (es) | 2019-06-24 |
US9783240B2 (en) | 2017-10-10 |
US20160152277A1 (en) | 2016-06-02 |
EP3024714B1 (fr) | 2019-01-02 |
CN105579329B (zh) | 2018-04-06 |
FR3008945B1 (fr) | 2018-03-02 |
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